【单选题】
Which type of attack most commonly involves a direct attack on a network？___
A. :phishing
B. Trojan horse
C. denial of service
D. social engineering
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答案
C
解析
暂无解析
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【单选题】
What information does the key length provide in an encryption algorithm?___
A. the cipher block size
B. the hash bloc k size
C. the number of permutations
D. the packet size
【单选题】
How do you verify TaCACS+ connectivity to a device？___
A. You successfully log in to the device by using the local credentials
B. You connect via console port and receive the login prompt.
C. You connect to the device using SSH and receive the login prompt.
D. You successfully log in to the device by using ACS credentials
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Which term best describes the concept of preventing the modification of data in transit and in storage？___
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D. integrity
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Which loS command is used to define the authentication key for ntp？___
A. switch（config ）#ntp authentication-key 1 mds Clcs
B. switch（config ）#ntp authenticate
C. switch（config）#ntp trusted-key 1
D. switch（config）#ntp source 192.168.0.1
【单选题】
What is true about the cisco lOS Resilient Configuration feature ?___
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【单选题】
When is the default deny all policy an exception in zone-based firewalls？___
A. when traffic terminates on the router via the self zone
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【单选题】
.If an access port is assigned as an isolated port in a PVLAN， which network ports can it communicate with？___
A. promiscuous ports in the same PLVAN
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【单选题】
Which IPSEC mode is used to encypt traffic directly between a client and a server VPN endpoint？___
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【单选题】
Which command do you enter to verify that a vpn connection is established between two endpoints and that the connection is passing traffic？ ___
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【单选题】
which type of Pvlan port allows communication from all port types？___
A. isolated
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【单选题】
Which command do you enter to configure your firewall to conceal internal addresses？___
A. no ip directed-broadcast
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【单选题】
Which feature defines a campus area network？ ___
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【单选题】
What technology can you use to provide data confidentiality data integrity and data origin authentication on your network？___
A. IPSec
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【单选题】
which standard is a hybrid protocol that uses oakley and skerne ke y exchanges is an ISAKMP framework？___
A. SHA
B. IPSec
C.
D. ES
【单选题】
What is the effect of the asa command crypto isakmp nat-traversal？___
A. It opens port 500 only on the out side interface
B. It opens port 500 only on the inside interface
C. It opens port 4500 on all interfaces that are IPSec enabled
D. It opens port 4500 only on the out side interfac
【单选题】
Which Fire POWER preproce ssor engine is used to prevent SYN attacks？___
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【单选题】
Which NAT type allows objects or groups to reference an IP address ？___
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【单选题】
Which Auto NAT policies are processed first？___
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【单选题】
Which feature allows a dynamic Pat pool to se lect the next address in the pat pool instead of the next port of an existing address？___
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【单选题】
Which IPS detection method can you use to detect attacks that are based on the attackers IP address？___
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【单选题】
Which type of encryption technology has the broadest platform support？___
A. software
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【单选题】
Which type of address translation supports the initiation of comm unications bidirectionally ？___
A. multi-session PAT
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【单选题】
Which label is given to a person who uses existing computer scripts to hack into computers while lacking the expertise to write the own？___
A. script kiddy
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【单选题】
What is the primary purpose of a defined rule in an IPS？___
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【单选题】
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【单选题】
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A. configure-model aaa
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【单选题】
Which statement about the given configuration is true？___
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